The F5 BIG-IP appliance must be configured to limit the number of concurrent sessions to the Configuration Utility to 10 or an organization-defined number.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-266064 | F5BI-DM-300001 | SV-266064r1024595_rule | Medium |
| Description |
| Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administrator is helpful in limiting risks related to denial-of-service (DoS) attacks. This requirement addresses concurrent sessions for administrative accounts and does not address concurrent sessions by a single administrator via multiple administrative accounts. Satisfies: SRG-APP-000001-NDM-000200, SRG-APP-000435-NDM-000315 |
| STIG | Date |
| F5 BIG-IP TMOS NDM Security Technical Implementation Guide | 2025-06-12 |
Details
| Check Text (C-69987r1023441_chk) |
| From the BIG-IP GUI: 1. System. 2. Preferences. 3. Verify that System Settings view is set to Advanced. 4. Verify Maximum HTTP connections to Configuration Utility is set to 10 or an organization-defined number. From the BIG-IP console, type the following command: tmsh list sys httpd max-clients If the device is not configured to limit the number of concurrent sessions to the Configuration Utility to 10 or an organization-defined number, this is a finding. |
| Fix Text (F-69890r1023442_fix) |
| From the BIG-IP GUI: 1. System. 2. Preferences. 3. Set System Settings view to Advanced. 4. Maximum HTTP connections to Configuration Utility: enter 10 or an organization-defined number. 5. Update. From the BIG-IP console, type the following commands: tmsh modify sys httpd max-clients <10 or an organization-defined number> tmsh save sys config |